Desiccating apparatus.



No. 32?,172. PATEHTED JULY 31, 1906. J. c. MoLAGHLAE.

DESIGGATIN'Q APPARATUS. urmonmx FILES was, 1:03.

7587295535 r V l'vzvenvfvr.

$7232 0. fllaczzan.

PATENTED JULY 31, 1966.

7 z. ILMoLAGHLAN. msmcumu APPARATUS.

APPLIOA'HQ! FILED Giff-3, 3903.

2 REFINE-BESS! 2.

Jitorneyfis fivezzior Jae/1n Ei il z -UNITED STATES PATENT OFFICE.

Jorm c. magmas, or chroma-1141x015. Besides-rise" shear-anus.

No. 027.179. Bpociflfiion stilettos-l Patent. Patented July 31, mos. lypliutimflsilletn eases. Malle- 170,191). t

T iw y 60 if receptacle J within the chamber J, into Be it how that 1, JOHN C. MOLAOKLAN a which the powdered material fails. There is citizen of the United States, residing at Chi an o 8311i? at the top of the inner chamber cago, in the county of Cook and State of 135- J, t ngr which the vapor driven off may 60 now, have invented a. certain new and use escape. his opening mafixbe left free or cov- Im rovement in Desiocating Apparatus, of ered withawireauze. the drawings the which the foliowinq is a. speclfieatlon. chambers J and are shown as broken, wluch My invention re ates to a machine or ap-f is meant to indicate that they $1 6 paratusfor producing owdered food and tivel greater len h or do th than shown in 5 to other like products from 'quid, and one form ,the rawin s. T e cham er J is well-like,

is illustrated in the accompanying drawings, being close at the bottom, so as to avoid the wheremintroduction oi currents of air and to permit 1 is an elevation with parts shown the solids to fail and collect in the bottom; m dotted lines. Fig. 2 is a Ian view of the Means for removing them, of course, must o 1 5' same with parts removed. 3, 4, 5, and provided; but in operation the preferred form 6 are details of the atomizer. 1s, asiridioated, awell-like chamber closed at Like parts are indicated by the same letter the and in all its lower parts, but open in allfig'ures. nearthe top, so that the vapors endoscope A is a compressedair tank in which a srritfrom the top and the solids be collected in t e an able supply of air or other fluid is kept. shape of a dry powder at the bottom. A is a go. to indicate the pressure. The course the lengt of this chamber will vary a paratus or compressing the air is not according'to the degreelof heat em ioyed and s own. V r l the character of the material. '1 usa'mate- A is a pipe controlled by the valve A and riai chargedlwith a large per cent. of water 3o 5 leading-frormthe lower art of the tank Ate and snbjected to relatively low heatee, for the heater-B. Thencet eairescapes through simple, such heat as the son would impart the pipe B into the hot-air chamberO, pro to the chamber J 'would necessarily fall 9. sided with the gage C. The hot-air 'chamconsiderable distance, whereas had it much 7 her is also connected with the compresse less moisture and were the heat ranch greater 85 air chamber by the pipe 0, which is con-' than last stated the fall could hereduced. In trolled by the valve 0. From the hot-air anyevent the le h of the eh arnher'helow chamber 0 leads the pipe C, controlled by "thepoint where t e matcfialassntrodnced the vaive C, to the outershell 0 of the atom must be such that the materiaiwill eventually 'izer. i i? the vapore ed area and he 90 D is s. tank which contains the sehstances depcsi jdin a dry owder; cm at the hotto be treated in a liquid form. From tom of the chamber. leads the pipe D, controlled ig'thefaire 133-5 "The material to be treated, if it is co The extreme end of the pipe theiin= posed of two substances-hi, ner portiorrof the atomizer; It ozitigifily milk and e may be mixed in the, mixing.- 95 4o flaring, as indicated at '1), and itsouter' Hp:- tank E"; w ch contains the stirring device are brought toggther, as indicated at D. E, drivenhx any desire manner, whence iike manner t outer portio 'of the atom: leads the ,gipe E controlled by the valve EF,

1zerhaqits extremity fiatlflg, asindicated at comers-mash.

, E,-and1tshpsdnwn ethenasindicated at ,Inonefonnof my device the air in ected w E. outer portion of the stomizerisprothrough the atomizer will be heated so that rider! with a series of ribs F. the treetedwhenitiisstomo Jis the rnber. This chamber iz'ed wiilhe ted; hnt'the steam or wemay he heated in any dered'niannekae, 7' o "tohe disposed of,-and hence for exempie,by extendirfigheefi lh'om the rredform of may}? aratas there :05

5o heater B or by t hot air from the is an ditional heatingm 1- whereby pipe 0, about chamber instead of rs'or gases are driven off. Thns cha it intothechamher or by the h ate chamber may be heated in 3''. other words, any desired means any desired manner, e1ther-- by placing itbeemployed'. heating-chamber, as shown A Ihave indicated grammatically cheater iecting t in any manner to external heat or J inthe chamber-J and wn manner welli y introducing currents OfhOii-MI mto it through the atomizer or otherwise, and the atomizing or spraying of the material may be accom lished in any desired manner byhot or col air and by air supplied in anydesired it will be evident that these parts are to be considered as in a sense dia ammatic and that they could be greatly varied without departin from the spirit of this invention. I

ave s own one form, and that only in part, but sufficient to illustrate a complete operative apparatus such as I have used.

The chamber J 2 is preferably a closed chamber, so that there will be no introduc tion of air or currents of air therethrough other than suchas are introduced b the entrance of material to be treated; but it is open at the top, as indicated, for the esca e of va or. Th s chamber is of relative y great ength and of such a length as to pe mit the solids to flow downwardly b the action of gravity until they are freed om vapor, the articles of vapor being successive] detache from the particles of such materia the vapor passing upwardly and particles of the material downwardly. The len th of the chamber must be such that by t 's action the particles of the materialwill eventuall escape from the va or-charged area and fall as fine dry powder in the bottom of this inner receptacle. Of course any device-for atomizing could be used so far as this feature of the invention is concerned, and the air used for atomizing if such an atomizer as that shown is used, could be either hot or cold. The temperature of the air if such is used to force the materials in, and the tem erature of the inner chamber J must be suc as not to cook or coagulate the albuminoids. In other words, the temperature must be relatively low.

The use and operation of my invention are s follows: A quantity of compressed air is f kept in the compressed air or storage tank A at an desired tem erature. This air is allowed to enter the heating-tank, where it is heated to an desired temperature. It then passes into the hot-air chamber. Here it is kept read for action. The tem eratures are variab e. Where delivered to t e atomizer, the air must be at a temperature which will not cook the materials or coagulate the albuminoids. It will be understood that I may use this air to dry the material at the same time that it atomizes it, or I may use it simply to atomize and then effect the drying process later. In the latter case the drying in the ap aratus shown would take place in the tank 3 and the air in such tank would be heated in an desired manner, referably by external app cation of heat. If the hot an is used in the atomizer to atomize and desiccate the solid materials, then under ordinary conditions it would be desirable to have the her heating process carried out in the chamber J, so as to drive oh the vapors. The materials to be treated are, if that is necessa stirred and mixed in the tank E and then ed into theliiiuid-tank D. B operating the valves proper y the two fluid; will ass simultaneously through the atomizer an the materials to be treated will be atomized, and if the temperature conditions are proper the same will be deposited as a, dry owder. The products of combustion are carel hlly excluded and the temperatures kept at a point where there will be no cooking or coa 1a tion of the albuminoids. The peculiar s ape of the atomizer at its dischar end obvioulsly facilitates the atomizing o the matena s.

My apparatus can be used with air of any temperature in an atomizer and heat of any temperature about the chamber, or the drying can be effected partly by the drying effect of air introduced through the atmos here and by heat applied tothe chambe t can be used with a large variety of liquid materials to roduce therefrom in a powdery form the soli s thereof practically free from moisture. I have employed it with milk, eg s, oxgall, blood-serum, and other materia s and mixtures of materials, and the products which I have obtained are always in the form of dr powders, like flour. I wish also to have it understood that in the use of the term chamber" applied to the drying-chamber I mean not to confine myself to the particular form of'chamber shown. For example, the vapor might obviously be carried away from t e upper art of the chamber, though this latter shou d be shaped very differently from What is illustrated, and it is e ually true that in a ver differently shaped chamber the owdere =material might be collected below.

therefore mean to use the term chamber in a broad sense havin reference to an orm or shape of a dry c amber which wi l permit-the va ors to pass out upwardly and the solids to e collected downwardly, the no latter to escape from the va or-charged area when they are sufiiciently eed from moisture.

I claim' 1. In an apparatus for form of a dry powder the so ids from liquids, the combination of a vertically-extended chamber, closed in its lower portion so as to normally revent currents of air and' serve as a pow er-collecting chamber, and open no near its upper end to ermit the escape of va por, with means for ischargin the material to betreated in a finely-chvi ed stateinto the upper end of said chamber, below the vapor-discharge o ening and above the 12 5 closed portion of t e chamber, and means for heating the contents of said chamber, the length of said chamber being such that the falling solids near the bottom of the cham-- ber escape from the vapor-charged area.

reducing in the "2.111 an apparatus for prodncing'in the form of a dry powder the solids from liquids, the comliainntion of n vertically-extended elunnher, elosed in its lower portion and open near its upper end, with means for discharging the nnitcrin-l to be treated in s finely-db vided state into the upper end of said chamher, and means for heating the contents of said ehmnher, the length of said chamber below where the nmlerinl is introduced being such that the falling solids near the bottom of the ehninher esenpe from the vaporeluu'ged ares.

3. in an apparatus l'or producing in the form of :1 dry powder the solids from liquids, the unnhinstiou of means for leading the liquid products in an atomizer, means supplvinp to smell atomizer it current of hot. air, o chamber into which the atomized products are discharged through such atomizer, said atomizer provided with a wide sireznl dischnrgemonth and distrihstingr'lhs therein.

4. hi on apporittos for producing in the form of a dry powder the solids from liquids, the eomhinoiion of a vertically-extended ehumher, closed in its lower portion so as to nornmlly prevent currents of air and serve as n powder-eollecling chomher, and open near its upper end to permit the escape of vapor, with means for discharging the material to he treated in o finely-dividedstate into the upper end of said ehznnher, below the \zlPUP-(llfit'llttlgl opening and shove the closed port-ion of the ehmnher, and means for heat-- ing the contents of said chnmher, the length of sold clminher heing such that theinlling solids near the hottom of the ehmnher eseope lrom the viipor-ehorged area, said means for discharging the material to be treated into the chamber comprising an atomizer with :1 supply source of hot air.

5. In an apparatus for producing in the form of a dry powder the solids from liquids, the eomhinotion of a vertically-extended chamber, closed in its lower portion and open near its upper end, with means for discharging the material to he treated in e finely-difor l i l g l l l l i l l nii't'the escape of apor, with means for l l l l y l vided state into the upper end of said chenibet", and means for heating the contents of said chamber, the iength of said chamber he= low where the nmterinl is introduced being such that the falling solids near the bottom of the chamber escape from the vaporcharged area said means for discharging the material to he tree led into the ehmnher comprising an atomizer with a supply source of hot air.

- 6. in an apparatus for producing in the form of it dry powder the solids from liquids, the combination of a vertically-extended rhaniher adopted helow to serve as a. pow-,

der-eolleeting receptacle and to prevented?- moss; air within it and open shore to per- 1sehsrging the material to he treated in a finely divided state into the upper end of said chamber below the vapor-discharge opening so that it can fall through said chamber to the powder-animating reeeptsris and means for heating the contents of said chamber, the vertical length of said chamber being sue that the falling solids near the powder-colletiting receptacle eseape from the 'vaporehsrged ares.

7. In an apparatus for producing in the form of a dry powder the solids from liquids, the combination of a, vertically-extended chamber adopted below to serve as a pow tier-collecting receptacle and to revent enrrents of air within it and open a ove to permit the escape of vapor, with means for dis charging into the upper portion of said chamher the materials to he treated in a. finely-di vided state so that it. can all through said chandler to the NWVdUF-Uflllflfitlng reeeptscle, and means, for heating the contents of said chamber, the vertical length of said chainher lacing sneh that the falling solids near the powdermolleel ing receptacle escape from the vapor-charged nlen.

JOHN 0. honour-JAN.

Enomi Ali. (,oNAN'r 

